Jared Mitchell, the White Sox' first-round pick in 2009, could miss the 2010 season after crashing into the wall in a spring-training game.

Mitchell, who helped Louisiana State to the 2009 College World Series championship, ranked No. 55 on Baseball America's Top 100 last month and ranked as the White Sox' No. 1 prospect this offseason. He got hurt Friday, tearing a tendon in his left ankle that will require surgery, according to numerous media reports. He made an impressive catch up against the wall on a long drive by the Angels' Juan Rivera.

White Sox manager Ozzie Guillen told reporters that Mitchell could miss the entire season.

"It's supposed to be about a year," he said. "We have to wait to see after surgery happens. Hopefully, everything goes well. The more important thing after that is the rehab, and hopefully, he'll get back pretty quick. We'll see what happens."